Tube-frame bracket



Aug.-7, 192s.

G. P. FINDLAY Tvsnr'nnn man Filed Dec. 18, 1926 [fire/:far

Gange P/rd/ ay patented ug. 7, 1928. UNITED :STATES P ATENT oF Fica. l-g .GEORGE r. FINDLAY. or WORCESTER, MASSACHUSETTS, A.Assicuvon To`CRoMPToN a ENoWLEs Loom wonxps, for WORCESTER, MASSACHUSETTS, ACORPORATION, oF

f MASSACHUSETTS.

'TUBE-rml: BRACKET.

Application led December 18,1926. Serial No. 155,760.

This invention relates "to a. bracket or hanger for use kon arn Stubeyframes forming part of the equipment of an Axminster carpet loom. Thesebrackets yprovide lbelarings for the yarn vspools and also provide-nieans by which the tube frames maybetdetachably connectedtothetransportlng `Epattern chains. v f

It is zthe general object ,of my invention to improve the constructionand-operation of the yielding attaching vhook by which `the bracket issecured lto thechain .and to improve the mounting thereof on thebracket.

W'ith this genera-l object in vlew, an important feature of my inventionrelates tothe provision of a hook so mounted that 1t is capable ofslight transverse movement, tending toreduce the strain on the hook andbracket as the tube frame chan es its angular position` with respect tot e pattern chains. Y

My invention further relates to arrangements and combinations of partswhich will be hereinafter set forth and more particularly pointed out inthe appended claims.

A preferred form of the invention is Shown in the drawings in whlch Fig.1 is a side elevation, partly in section, showing my improved bracket;

Fig. 2 ris an end elevation of the bracket, v

lookingin the direction of the arrow 2 in Fig. 1;

Fig. 8 is a View similar to Flg. 1, but showing the bracket in detachedposition;

Fig. k4 is a sectional end elevation, taken along the line 4-4 in Fig.3; and

Fig. 5 is a side elevation of the hook.

Referring to the drawings, I have indicated a. tube frame comprising a.rectangular hollow tubular member 10 having a tube trame bracket securedin the end thereof by screws 11. The bracket comprises an up-yright'portion 12 having a bearing 13vffor a spool S at its upper end.The member 12 also has an oiset chain-engaging portion 14 adapted toextend upward between the links of a transporting pattern chain C. Thelower end of the member 12 is offset, as indicated at 15, to provide a.lower attaching arm for the bracket, and an L-shaped member 16 is weldedor otherwise secured to the member 12 to provide an upper attachingprovided with a head 20 having.a'liook-likc yportionwhichengages the.chain C when the parts are yin `operative relation. The lower end y21 ofthe hook is ol'set or bent out- Wardly and 1s provided with a pivot studywhich extends loosely through an open- -ing23 1n theendfof the bracket.The stud 22-.extendsthrough`both members 12 and `16 Y a-nd issurroundedbyaspring 24, held in position on thestud by a washer 25 and cross i pin26. Above the koffset portion 21, the f fulgeof `the hook forms a pointotV rocking ycontact with the member 12.

At this point the hookis also provided with an opening 28 through whichextends a stud29, firmly secured in the end wall of the bracket. The.opening 28 is of such size that the stud 29 doesV not engage the hook 1nany position thereof, the stud being provided for engagement by a screw31 in the clamp 32 by which the tube frame is carried downward toweaving position. If the bracket fails to disengage from the chain C,the arm 32 will be held upward by enga ement of the screw 31 with thestud 22, an a suitable stop motion will be put in operation to stop theloom.

The screw 31 also acts to disengage the hook 18 from the chain C bypressing the hook back against the member 12, as clearly shown in Fig.3. Such movement of the hook is yieldingly resisted by the spring 24,whlch is thereby `placed under increased compression. It willbevunderstood that the stud 22 fits loosely enough in its opening 23 sothat this outward and angular movement of the stud is permitted.

In the operation of the loom, the tube,

ment between the hook and the chain and causing unnecessary wear.

c With my improved construction, the hook 18 is free to swing betweenlimits about the axis of the stud 22, moving from the full linel to thedotted line position shown in Fig. 4. The `limits of movement are deaslot l fined by the side walls of the slot 19. This provision of limitedtransverse 'movement for the upper end of the hook has been found ofsubstantial advantage, as it relieves the structure of unnecessarystrain particularly at the point of attachment of the spring tothebracket, and also reduces the engaging' hook yhaving a point of rockingWear upon the end 20 ofthe hook.

Having thus described my invention and the advantages thereof, I do notWish to be limited to the details hereindisclosed otherwise than as settorth in the claims, but what I claim is: i

l. ln a tube frame, a bracket and a chainengaging hook mounted on saidbracket, saidhook having a pivot stud with its axisdisposedperpendicularv to the vline of movement of the chain and extendingthrough the end Wall of the bracket, and a coil spring .encircling saidstud Within said bracket and held under compression on said stud.

2. ln a tube trame, a bracket and a chainengaeino hook mounted on saidbracket said n lo j hook having pivotal movement about an axis travel ofthe chainya-nd having a rocking movement about a point of engagement 4ofsaid hook and bracket above said pivotal axis,

3.' In'atube trame bracket, a rigid chainengagemcnt on said bracket andhaving its lowerend offset away from said bracket belovv said. point of.engagement, and a spring' effective to yieldingly draw said ofset lowerend toward said bracket.

l. ln a tube iramevbracket, a rigid chain kengaging hook having a pointof rocklngy engagement on said bracket and having yits lower end offsetaway from said bracket be-v loW said point ot engagement, and a springeffective to yieldingly draw said offset lower end toward said bracket,said spring being mounted entirely Within the tube trame but beingremovable with the bracket therefrom.

In testimony `whereof I have hereunto af- Xed my signature.

GEORGE P. FINDLAY, i

